/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "ScriptErrorHelper.h"

#include "MainThreadUtils.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h"
#include "nsIConsoleService.h"
#include "nsIScriptError.h"
#include "nsString.h"
#include "nsThreadUtils.h"

namespace {

class ScriptErrorRunnable final : public mozilla::Runnable
{
  nsString mMessage;
  nsCString mMessageName;
  nsString mFilename;
  uint32_t mLineNumber;
  uint32_t mColumnNumber;
  uint32_t mSeverityFlag;
  uint64_t mInnerWindowID;
  bool mIsChrome;

public:
  ScriptErrorRunnable(const nsAString& aMessage,
                      const nsAString& aFilename,
                      uint32_t aLineNumber,
                      uint32_t aColumnNumber,
                      uint32_t aSeverityFlag,
                      bool aIsChrome,
                      uint64_t aInnerWindowID)
    : mMessage(aMessage)
    , mFilename(aFilename)
    , mLineNumber(aLineNumber)
    , mColumnNumber(aColumnNumber)
    , mSeverityFlag(aSeverityFlag)
    , mInnerWindowID(aInnerWindowID)
    , mIsChrome(aIsChrome)
  {
    MOZ_ASSERT(!NS_IsMainThread());
    mMessageName.SetIsVoid(true);
  }

  ScriptErrorRunnable(const nsACString& aMessageName,
                      const nsAString& aFilename,
                      uint32_t aLineNumber,
                      uint32_t aColumnNumber,
                      uint32_t aSeverityFlag,
                      bool aIsChrome,
                      uint64_t aInnerWindowID)
    : mMessageName(aMessageName)
    , mFilename(aFilename)
    , mLineNumber(aLineNumber)
    , mColumnNumber(aColumnNumber)
    , mSeverityFlag(aSeverityFlag)
    , mInnerWindowID(aInnerWindowID)
    , mIsChrome(aIsChrome)
  {
    MOZ_ASSERT(!NS_IsMainThread());
    mMessage.SetIsVoid(true);
  }

  static void
  DumpLocalizedMessage(const nsACString& aMessageName,
                       const nsAString& aFilename,
                       uint32_t aLineNumber,
                       uint32_t aColumnNumber,
                       uint32_t aSeverityFlag,
                       bool aIsChrome,
                       uint64_t aInnerWindowID)
  {
    MOZ_ASSERT(NS_IsMainThread());
    MOZ_ASSERT(!aMessageName.IsEmpty());

    nsXPIDLString localizedMessage;
    if (NS_WARN_IF(NS_FAILED(
      nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
                                         aMessageName.BeginReading(),
                                         localizedMessage)))) {
      return;
    }

    Dump(localizedMessage,
         aFilename,
         aLineNumber,
         aColumnNumber,
         aSeverityFlag,
         aIsChrome,
         aInnerWindowID);
  }

  static void
  Dump(const nsAString& aMessage,
       const nsAString& aFilename,
       uint32_t aLineNumber,
       uint32_t aColumnNumber,
       uint32_t aSeverityFlag,
       bool aIsChrome,
       uint64_t aInnerWindowID)
  {
    MOZ_ASSERT(NS_IsMainThread());

    nsAutoCString category;
    if (aIsChrome) {
      category.AssignLiteral("chrome ");
    } else {
      category.AssignLiteral("content ");
    }
    category.AppendLiteral("javascript");

    nsCOMPtr<nsIConsoleService> consoleService =
      do_GetService(NS_CONSOLESERVICE_CONTRACTID);
    MOZ_ASSERT(consoleService);

    nsCOMPtr<nsIScriptError> scriptError =
      do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
    MOZ_ASSERT(scriptError);

    if (aInnerWindowID) {
      MOZ_ALWAYS_SUCCEEDS(
        scriptError->InitWithWindowID(aMessage,
                                      aFilename,
                                      /* aSourceLine */ EmptyString(),
                                      aLineNumber,
                                      aColumnNumber,
                                      aSeverityFlag,
                                      category,
                                      aInnerWindowID));
    } else {
      MOZ_ALWAYS_SUCCEEDS(
        scriptError->Init(aMessage,
                          aFilename,
                          /* aSourceLine */ EmptyString(),
                          aLineNumber,
                          aColumnNumber,
                          aSeverityFlag,
                          category.get()));
    }

    MOZ_ALWAYS_SUCCEEDS(consoleService->LogMessage(scriptError));
  }

  NS_IMETHOD
  Run() override
  {
    MOZ_ASSERT(NS_IsMainThread());
    MOZ_ASSERT(mMessage.IsVoid() != mMessageName.IsVoid());

    if (!mMessage.IsVoid()) {
      Dump(mMessage,
           mFilename,
           mLineNumber,
           mColumnNumber,
           mSeverityFlag,
           mIsChrome,
           mInnerWindowID);
      return NS_OK;
    }

    DumpLocalizedMessage(mMessageName,
                         mFilename,
                         mLineNumber,
                         mColumnNumber,
                         mSeverityFlag,
                         mIsChrome,
                         mInnerWindowID);

    return NS_OK;
  }

private:
  virtual ~ScriptErrorRunnable() {}
};

} // namespace

namespace mozilla {
namespace dom {
namespace indexedDB {

/*static*/ void
ScriptErrorHelper::Dump(const nsAString& aMessage,
                        const nsAString& aFilename,
                        uint32_t aLineNumber,
                        uint32_t aColumnNumber,
                        uint32_t aSeverityFlag,
                        bool aIsChrome,
                        uint64_t aInnerWindowID)
{
  if (NS_IsMainThread()) {
    ScriptErrorRunnable::Dump(aMessage,
                              aFilename,
                              aLineNumber,
                              aColumnNumber,
                              aSeverityFlag,
                              aIsChrome,
                              aInnerWindowID);
  } else {
    RefPtr<ScriptErrorRunnable> runnable =
      new ScriptErrorRunnable(aMessage,
                              aFilename,
                              aLineNumber,
                              aColumnNumber,
                              aSeverityFlag,
                              aIsChrome,
                              aInnerWindowID);
    MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable));
  }
}

/*static*/ void
ScriptErrorHelper::DumpLocalizedMessage(const nsACString& aMessageName,
                                        const nsAString& aFilename,
                                        uint32_t aLineNumber,
                                        uint32_t aColumnNumber,
                                        uint32_t aSeverityFlag,
                                        bool aIsChrome,
                                        uint64_t aInnerWindowID)
{
  if (NS_IsMainThread()) {
    ScriptErrorRunnable::DumpLocalizedMessage(aMessageName,
                                              aFilename,
                                              aLineNumber,
                                              aColumnNumber,
                                              aSeverityFlag,
                                              aIsChrome,
                                              aInnerWindowID);
  } else {
    RefPtr<ScriptErrorRunnable> runnable =
      new ScriptErrorRunnable(aMessageName,
                              aFilename,
                              aLineNumber,
                              aColumnNumber,
                              aSeverityFlag,
                              aIsChrome,
                              aInnerWindowID);
    MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable));
  }
}

} // namespace indexedDB
} // namespace dom
} // namespace mozilla
